Tracy R. Melzer

TL;DR: The MoCA is a suitably accurate, brief test when screening all levels of cognition in Parkinson disease, by comparison with a PD-focused test and the standardized Mini-Mental State Examination as benchmarks.

TL;DR: Results support the radial unit hypothesis that different developmental mechanisms promote surface area expansion and increases in thickness and find evidence that brain structure is a key phenotype along the causal pathway that leads from genetic variation to differences in general cognitive function.

TL;DR: Grey matter atrophy occurs in PD with dementia but far less extensive changes are evident in PD-MCI, while grey matter loss in PD correlated with global cognitive score but not motor impairment in most of these regions.

TL;DR: General functional connectivity (GFC) is presented as a method for leveraging shared features across resting‐state and task fMRI and it is demonstrated that GFC offers better test‐retest reliability than intrinsic connectivity estimated from the same amount of resting‐ state data alone.

TL;DR: A network approach, supported by arterial spin labelling-derived absolute perfusion values may provide a readily accessible neuroimaging method to characterize and track progression of both motor and cognitive status in Parkinson's disease.